Aztoken Speaking Skull

Sacrifice a Creature {t}: Scry 2.
Sacrifice a Creature {t}: Fateseal 1 (Look at the
top card of an opponent's library, then put it on
the bottom of that player's library or on top of it.)
Only when its runes are coated in fresh blood will it
croak out to a blood priest either prophetic blessings
on his people or curses to their foes.